We've experimented with various ratios and right now have a 3.78 locker. We have a 408 cubic inch cast iron LS V8 with Eagle rotating assmelbies, AFR big port heads and a 90 mm FASt intake, etc., 12.2 compression ratio (and an appetite for octane booster) and a T-Rex cam that does 540 RWHP NA. Three stages of NOS: +105 RWHP (Ist gear), +190 and +265. Overboosted on NOS we've done as much as 320 extra but we get bad oscillation and dirveline shudder that gets pretty bad.

 

wow that is one sweet a$$ car!

whats your best 1/4 mi time?

i wanna go bigger with my engine like to 500hp but its my dailiy driver for now so i dont wanna go higher than 460hp and even thats not gonna be that fuel efficient lol but hey its a camaro not a hybrid lol